or break week forpresidentobamaandgovernor romney. hunk eering down, cramming for e big debate. what are the secrets to land the knockout punch? >>> peanut butter, a massive recall expanding tonight. we'll tell you which symptoms could spell trouble. >>> and, oscar stunner. the new host for the academy awards. not a movie star. why fans of the "family guy" are having the last laugh tonight. >> victory is mine! >>> good evening from "world news." and we begin with breaking news. an american airlines plane has been forced to land urn strannd strange circumstances. a whole row of seats shaken loose. passengers upended. and this is the second time seats have come loose and forced a landing in three days. so, what is going on? for the latest on what happened today, let's go right to abc's senior national correspondent, jim avila. >> 685, what can i do for you? >> roger. got an unusual one for you. >> reporter: no one can remember this happening before. not passengers, so rattled they didn't want to be identified. >> the seats flipped backwards and so people were essentially on the laps of